基于AST的代码优化

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1. 基于 AST 的代码优化
   ⻩黄志敏
   

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2. ⾃自我介绍
   • Xinmin Labs 创始⼈人
   • 前 OpenFeint 资深⼯工程师
   • 开源社区贡献者
   • 半⻢马完赛者
   • @flyerhzm
   

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3. 遇到的问题
   

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4. 代码审查
   

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7. 重复重复重复
   

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10. 解决⽅方案
    

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11. CodeClimate
    

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14. PullReview
    

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16. 如何做到的
    

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17. 开源⼯工具!
    

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18. flay
    分析代码结构相似度
    

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20. flog
    分析代码复杂度
    

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22. reek
    检查代码类、模块和⽅方法，报告Code Smell
    

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24. roodi
    分析并报告代码设计问题
    

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26. rails_best_practices
    针对 rails 项⺫⽬目代码检查 code smell
    

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28. 如何实现的呢
    

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29. ruby 代码解析库
    =>
    AST
    

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30. ParseTree
    • 最早的 ruby 代码解析库
    • 不⽀支持 ruby 1.9 和后续版本
    

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31. ruby_parser
    • 最流⾏行的 ruby 代码解析库
    • 输出结果和 ParseTree ⼀一致
    

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34. ActiveRecord::Base
    belongs_to :user
    touch :archived_at
    def archive
    

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35. ripper
    • ruby 内置的解析库
    • ⽀支持 ruby 的新语法
    

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37. ActiveRecord::Base
    belongs_to :user
    def archive
    touch :archived_at
    

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38. parser
    • 新的 ruby 代码解析库
    • ⽀支持代码重写
    

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40. ActiveRecord::Base
    belongs_to :user
    def archive
    touch :archived_at
    

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41. 满⾜足需求？
    

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42. ⾃自动修改!
    

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43. transpec
    ⾃自动将 rspec 2 的语法转换成 rspec 3 的语法
    

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47. rubocop
    基于社区版的 ruby style guide 的代码分析和重写⼯工具
    

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52. Synvert
    ruby 语法转换⼯工具
    

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56. 演⽰示
    

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57. 内部项⺫⽬目
    

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60. 奖励
    • seeing_is_believing
    • method_log
    

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61. 参考资料
    CodeClimate - https://codeclimate.com/
    PullReview - https://www.pullreview.com/
    flay - https://github.com/seattlerb/flay
    flog - https://github.com/seattlerb/flog
    reek - https://github.com/troessner/reek
    roodi - https://github.com/roodi/roodi
    rails_best_practices - https://github.com/railsbp/rails_best_practices
    

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62. 参考资料
    parsetree - https://github.com/seattlerb/parsetree
    ruby_parser - https://github.com/seattlerb/ruby_parser
    parser - https://github.com/whitequark/parser
    rubocop - https://github.com/bbatsov/rubocop
    transpec - https://github.com/yujinakayama/transpec
    synvert - https://github.com/xinminlabs/synvert
    

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63. 招聘
    flyerhzm@xinminlabs.com
    

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64. 谢谢
    提问
    

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